Which of the following is a run-on sentence?
How could you fix the run-on sentence, "Moby has three lights they are red."
Which of the following sentences is correct?
Which of the following is a run-on sentence?
Which of the following sentences is correct?

Which of the following is a run-on sentence?
Which of the following is a complete sentence?
Which of the following is correct?
How could you fix the following run-on sentence: "Tim rode his bicycle all day long by sunset he'd traveled fifty miles?"
How could you fix the following run-on sentence: "It was so cold outside that my ears froze they didn't warm up until I came indoors?"